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A026292 as a simple table

n a(n)
0 1
1 1
2 5
3 27
4 145
5 796
6 4438
7 25034
8 142479
9 816620
10 4706977
11 27256963
12 158450461
13 924129535
14 5404960900
15 31689099660
16 18618338689
17 1096001511849
18 6462416487070
19 38161656273410
20 222225653893420214

[1,1,5,27,145,796,4438,25034,142479,816620,
 4706977,27256963,158450461,924129535,5404960900,
 31689099660,18618338689,1096001511849,
 6462416487070,38161656273410,222225653893420214]

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Last modified January 22 05:11 EST 2019. Contains 319353 sequences. (Running on oeis4.)